Fix: Plug-in ordering didn't work on initial order

- The resolution of unknown sorting types was being done after the
  sorting structure array of objects was being calculated. As such, a
  string sort was always being done in the first instance!

- This fixes thread 20433

.datatables-commit-sync

@@ -1 +1 @@
-528da3b2d730d076d579e6a6168e7cfcde776710
+d93e8e306c30875b8c3e94f291dc883befa2fa9f

media/js/jquery.dataTables.js

@@ -4305,13 +4305,15 @@
 			formatters = 0,
 			sortCol,
 			displayMaster = oSettings.aiDisplayMaster,
-			aSort = _fnSortFlatten( oSettings );
+			aSort;
 	
 		// Resolve any column types that are unknown due to addition or invalidation
 		// @todo Can this be moved into a 'data-ready' handler which is called when
 		//   data is going to be used in the table?
 		_fnColumnTypes( oSettings );
 	
+		aSort = _fnSortFlatten( oSettings )
+	
 		for ( i=0, ien=aSort.length ; i<ien ; i++ ) {
 			sortCol = aSort[i];